Figure 94: Activating Operate Signal; Figure 95: Deactivating Operate Signal - ABB UniGear Digital Commissioning And Testing Manual

AP PAR ATU S CO NTR O L T E S TI NG
Step 5/11
On the protection relay LHMI (tested feeder) go to-> Main Menu/Test/Function tests/
Other protection
– ARCSARC1 = Activate OPERATE

Figure 94: Activating OPERATE signal

The circuit breaker must trip and, according to inter-trip logic scheme, forward the trip com-
mand to the upstream circuit breaker (Incomer, Generator and Bus tie). The upstream circuit
breaker must trip immediately. All feeders in the relative section shall trip at the same time if
inter-trip is designed.
Then
On the protection relay LHMI (tested feeder) go to-> Main Menu/Test/Function tests/
Other protection
– ARCSARC1 = deactivate OPERATE

Figure 95: Deactivating OPERATE signal

Step 6/11
Check interlocking logic. Clear lockouts.
Step 7/11
Close all circuit breakers in the relative section.
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I NT ER LO C K S BE T W EE N PA NE LS
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